|Cray Disk Project|
Courtesy of Chris Fenton, a research forensic recording of an 80 megabyte CDC-9877 disk pack. From Fenton: "It is a 'magnetic image' of an 80 megabyte CDC-9877 disk pack that might potentially contain some Cray-1 system software (it might also be blank), of which no known copies currently still exist. I managed to acquire a disk drive from the 1970's that could accept one of these disks, but none of the control electronics worked anymore...
Keywords: Cray; Disk Image
|COS 1.17 disk image for Cray-1/X-MP|
This disk contains a backup of the last remaining copy of the Cray Operating System, the original operating system for the Cray-1 and Cray X-MP supercomputer line. The disk likely contains a binary image of COS 1.17 (the last revision of of the OS), as well as other unknown software, and initially belonged to a single-processor Cray X-MP machine. The disk was written in 1989. The machine's I/O Subsystem (IOS) would have likely booted from this disk, and then loaded the OS into main CPU memory...
Keywords: Cray; OS; Disk Image; X-MP